Fix Android rescheduled notifications firing immediately, ref:...

Fix Android rescheduled notifications firing immediately, ref: https://github.com/invertase/react-native-firebase/pull/1035/files

android/src/main/java/com/evollu/react/fcm/FIRLocalMessagingHelper.java

@@ -58,11 +58,11 @@ public class FIRLocalMessagingHelper {
             return;
         }
 
-        long fireDate = Math.round(bundle.getDouble("fire_date"));
-        if(fireDate == 0){
-            fireDate = Math.round(bundle.getLong("fire_date"));
+        Long fireDate = bundle.getLong("fire_date", -1);
+        if (fireDate == -1) {
+            fireDate = (long) bundle.getDouble("fire_date", -1);
         }
-        if (fireDate == 0) {
+        if (fireDate == -1) {
             Log.e(TAG, "failed to schedule notification because fire date is missing");
             return;
         }